That's all due to changes by YouTube to reward length and frequency, which of course makes sense for maximizing their ad revenue. But the result is creators are incentivized to pump out 20-minute fluff videos, not well edited/written videos.
People on here complain about SEO sites being filled with meaningless garbage. That's what YouTube is starting to be. The difference is their search bar still works whereas Google's will only give you the garbage. Though I still get "such and such breaks down their career" even though I've never clicked on that.